Amusement device



May 12, 1925. 1,537,686

A. E LYNN AMUSEMENT DEVI CE Filed Aug. 6. 1923 surface of a horizontal platform. other end of the central section is fastened to a crank or offset portion of a rotatable Patented May 12, 1925.

UNITED STATES aren't orrics.

AMBROSE E. LYNN, F DENVER, COLORADO.

AMUSEMENT DEVICE.

Application filed August 6, 1923. Serial No. 655,911.

ing to be a full, clear, and. exact description of the'invention, such as will enable others skilled in the art to which it appeitains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in amusement devices of the type usually referred to as oceanwave devices.

It is the object of this invention to produce a cevice of this type which shall be so constructed that it will operate more satisfactorily and be less subject to wear than devices of this type with which I am familiar.

My device, briefly described, consists of three platforms hingedly connected. The central platform is provided at one end with castors or rollers which roll on the uppler Tie shaft and describes a closed, substantially circular, curve when the shaft rotates. The outer ends of the end platforms are also provided with rollers which rest upon in clined platforms. As the shaft is rotated, the end platforms are reciprocated and three outer ends move in oppositely inclined directions, the three platform sections producing a wavelike motion that has given rise to the name ocean wave. 1

In order to better and more clearly describe my improvement, I shall have reference to the accompanying drawing in which:

Fig. 1 represents a top plan View of my improved device.

Fig. 2 is a section taken on line 2-2,-

Fig. 1.

Fig. 3 is a side elevation to a somewhat larger scale of the end of one of the platforms, the view being taken looking in the direction of arrow 3 in Fig. 1.

Fig. 4 is a bottom plan view of the end of one of the end platforms, the view being taken looking in the direction of arrow 1: in Fig. 3; and

Fig. 5 is a section taken on line '5-5., Fig. 41.

The same reference characters will be used to designate the same parts throughout the several views.

Numerals 1 and 2 represent foundation blocks of concrete or other suitable material to the upper surfaces of which are secured pillow blocks 3 within which is journaled a shaft 4C which has an offset portion 5 cooperatively connected with bearings 6 that are secured to the front end 7 of the central platform section 8. Secured to the under surface of the rear end 9 of section 8 are two or more rollers 10 which rest upon the upper surface of the platform 11. A belt wheel 12 is secured to the end of shaft & and is rotated through the medium of the belt 13. It is now apparent that when the shaft- & is rotated, the bearings 6 will be moved in a circle about the axis of the shaft and as the front end 7 ofthe platform is moved in a closed curve by' means of the rotating shaft, the rear end will move back and forth, being supported from the platform 11 by rollers .10. Se-

curedby means of hinges 14 to the front and rear ends of platform section 8 are sections 15 and 16, respectively. The free ends of sections 15 and 16 project onto the inclined platforms 17 and 18 which bothincline downwardly towards section 8. Secured to the under surface of each free end of sec- "tion 15 and 16 is a rollerassemblylt) (shown in section in Fig. 5, and in the bottom plan view in Fig. 4:). sists of a block 20 of wood or other suitable material of a plan0conveX, transverse secion (Fig. 5) which is secured to. the bottom of the free ends of platform sections 15 and 16 in the manner shown in Fig. 3. In the lower or convex side of blocks 20 are a plurality of spaced cavities 21, within each of which is mounted a roller 22. The axisof the several rollers coincide and are at right angles to the longitudinal axis of the platforms. The rollers 22 may be made in any desired manner, but are preferably mounted in a casing 23 which has a curved outer surface 24: that is] countersunk in block 20 and secured thereto bymeans of screws 25. The portion of the bottom of platforms 15 and 16, to which the roller assembly is secured, are inclined with re spect to the plane of the platforms, in the The roller assembly con- Cir manner indicated most clearly in Fig. 3, so that the rollers will always contact with the inclined surfaces of the platforms 17 and 18 in every position of the platforms l5 and 16. I

Let us now suppose that the shaft f is rotated in a counter-clockwise direction (Fig. 2), platform sections 8, 15 and 16 will then move toward the left. The lefthand end of the section 15 will move upwardly I along the surface of the platform 17, while the righthand end moves in the are of a circle about an axis parallel to shaft 4. The righthand end of platform 16 moves to the left and downwardly along the inclined surface of platform 18, while the lefthand end travels back and forth in a slightly curved line, owing to its attachment by means of hinges 1st to the righthand end of platform section 8. The composite movement of the platform sections causes the upper' surfaces to have a peculiar wavelike motion which gives a sensation similar to what would be experienced if one were riding on the ocean waves.

I want to call particular attention to the roller assemblies 19 which are secured to the free ends of platforms 15 and 16. The employment of rollers at this point overcomes the friction that would otherwise be encountered here were sliding surfaces employed. Besides this, the fact that the pivot point of the platforms 15and-16 are at a free ends and the blocks and platforms to oscillate about the point of contact of the rollers 22 with the platforn'i surface without the block coming); in contact therewith.

Having now described my invention, what I claim as new is:

1. In combination a horizontal surface, a shaft rotatably mounted and spaced from said surface, said shaft having an offset portion, aplatform having one end secured to the offset portion of the shaft and the other end slidably connected to the horizontal sur face, two opposite inwardly-and downwardly inclined platforms spaced from the ends of said first-named platform, a platform sec tion hingedly connected to each end of the first-named platform section and having their free ends supported by the surfaces of the two oppositely inclined platforms and antifriction means between the free ends of said plat-form sections and the inclined platforms. I

In combination a stationary horizontal surface, a shaft rotatably mounted at a distance from the stationary surface with its axis substantially coincident with the plane of said surface, said shaft having an offset portion forming a crank, a platform section having one end rotatably secured to said crank and the other end slidably supported on said horizontal surface, a pair of inwardly and dmvnWardly inclined platforms, one spaced a short distance from the horizontal surface and the other spaced a short distance from the shaft, a platform section hingedto each end of said first-named platform section, each of said amend-named platform sections having their free end supported on one of said inclined platforms, and an antifr'iction roller-bearing between each. of said the cooperating inclined platform. v

In testimony whereof I attire my signature.

AMBROSE E. LYNN 

